Get To Know Our Doctors
Healthonomic Primary Care
Our group of doctors is made up of experienced and highly-trained physicians who subscribe to the Healthonomic mission statement of serving humanity through combating disease. We aim to provide education, support, guidance, and quality healthcare for those in need. Our clinics are made up of knowledgeable internists, women’s health specialists, family medicine doctors, and nurse practitioners.
Dr. Maria Lentzou, MD
Healow ID Number
JJT - ERN - JJA7
Dr. Maria Lentzou serves the community of Orland Park, Illinois through Healthonomic Primary Care. With expertise in internal health, she provides diagnostics and treatment for adults in the area.
Dr. Lentzou received her board certification in internal medicine in 2000 and has been practicing ever since. She graduated top of her class at the University of Athens and was top 10% during her residency at the University of Illinois at Chicago Medical School. Her faith is an important driving force for her work and dedication to medicine. She speaks English, Polish, Greek, and Spanish and volunteers at her church every Saturday.
As part of her many active roles, she is the founder and president of her own multi-location medical group, which is affiliated with Advocate Physicians Partners, Advocate Christ Hospital, and Palos Health. Dr. Lentzou is an active member of her community in the southwest suburbs of Chicago.
Dr. Lentzou Receives Award
Dr. Lentzou receives a highly regarded award from Advocate Physician Partners. Advocate Physician Partners (APP) brings together more than 5,000 physicians who are committed to improving health care quality, safety and outcomes for patients across Chicagoland and central Illinois. Dr. Lentzou and Healthonomic Primary Care is being recognized for exceptional integration outcomes which focuses on the needs of patients.
Dr. Moira McQuillan, MD
Healow ID Number
Dr. Moira McQuillan is the newest physician to join Healthonomic Primary Care. She is a graduate of the University of Illinois St Joseph Hospital Family Medicine Residency Program. Dr. McQuillan is a board-certified family physician through the American Board of Family Medicine. She is also a member of the American Academy of Family Physicians. She attended University of Illinois for her undergraduate studies. She then worked as an Intern Athletic Trainer at Northwestern University with their Football, Tennis and Men’s Soccer teams. She then moved to Dublin, Ireland where she earned her Doctor of Medicine from the Royal College of Surgeons.
Dr. McQuillan is excited to continue to practice on the south side of Chicago. She treats patients of all ages, including children, adolescents, and adults. She has experience in diagnosing and treating complex and chronic disease processes and places a large emphasis on disease prevention in her day to day practice. She enjoys partnering with her patients to build long-standing relationships while helping them achieve their optimal health goals.
Dr. McQuillan currently resides in the Beverly Morgan Park area of Chicago with her husband and four children. In her free time, she enjoys running, gardening and photography.
Ilse Gabriela Vega, FNP-BC
Ms. Ilse Vega completed her Master’s Degree as a Family Nurse Practitioner at Lewis University. She is a member of Sigma Theta Tau International Honor Society of Nursing. Former Women’s Empowerment Chair for Alpha Phi Sorority and was on the Dean’s List. She is board certified by the American Nurses Credentialing Center.
Her passion for helping others influenced her decision to become a provider. She has experience in managing chronic diseases such as diabetes, hypertension, asthma hypertension, and acute illnesses and pain management. She is fluent in Spanish and strives to provide quality patient-centered care, supports patient empowerment and self-management for the best possible outcomes, and believes in primary disease prevention through patient education and continuity of care.
In her spare time, Ilse enjoys practicing Aesthetic Medicine providing cosmetic services, and helping patients improve their self-esteem and promote self-care. Ilse seeks to learn new concepts and skills with high amplitude in health and wellness. She enjoys traveling and trying new adventures.
Marybell Ramirez, FNP-C
Healow ID Number
JII - HHA - AS77
Marybell Ramirez is a board-certified nurse practitioner, specializing in family practice. She completed a Bachelor of Science in Nursing degree at Purdue University in Indiana and went on to earn her Master of Science in Nursing degree at Chamberlain University, College of Nursing in Illinois. Marybell is board-certified by the American Academy of Nurse Practitioners (AANP) as a family nurse practitioner.
As a nurse, Marybell has worked in the home health sector with a specialty in ophthalmology. The home health sector has allowed for a vast exposure to various health fields such as cardiology, gastroenterology, neurology, ENT, orthopedics, urology, psychiatry, women’s health, geriatrics, pre and post-surgical care, and wound care.
In collaboration with the providers of Healthonomic Primary Care, her mission as a nurse practitioner is to provide the highest level of quality healthcare in order to promote wellness, educate on disease and illness prevention, along with increasing access to healthcare for those in need.
Ryan Kim, NP
Healow ID Number
JHT - JIS - AANR
Ryan Kim is a board-certified nurse practitioner specializing in family practice. He completed his Bachelor of Science in Nursing at Governors State University, in University Park, Illinois. He then earned his Master of Science at Governors State University.
Ryan holds national board certification through the American Nurses Credentialing Center (ANCC) as a family nurse practitioner. As a nurse, he has worked in emergency medicine and medical-surgical departments. He works closely with the team at Healthonomic Primary Care to deliver a holistic approach to healthcare.
In his spare time, he enjoys volunteer work and giving back to various communities. He has taught Sunday school at his church for over ten years and has participated in two mission trips to Guatemala. He hopes to eventually be able to participate in medical missions and outreach to underserved communities.
Contact One of Our Three Locations
Healthonomic Primary Care is dedicated to serving these Chicago-area communities. Our group of doctors are highly-specialized and dedicated to offering quality healthcare. We work to provide accurate diagnoses, treatments, holistic approaches, and wellness tips to improve health in an all-encompassing and complete way. Come by one of our offices or give us a call today.